Amount of revenue, fees and commissions earned from transactions between (a) a parent company and its subsidiaries; (b) subsidiaries of a common parent; (c) an entity and trusts for the benefit of employees, for example, but not limited to, pension and profit-sharing trusts that are managed by or under the trusteeship of the entity's management; (d) an entity and its principal, owners, management, or members of their immediate families; and (e) affiliates.

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+ Details

INVESTMENT IN RELATED PARTY INVESTMENT FUND - Narrative (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021	Dec. 31, 2021
Schedule of Equity Method Investments [Line Items]
Revenue from related parties	$ 11,876	$ (2,006)	$ 15,953	$ 2,018
General Partner
Schedule of Equity Method Investments [Line Items]
Equity method investment, ownership interest (as a percent)	24.00%		24.00%		21.80%
Limited Partnership Agreement
Schedule of Equity Method Investments [Line Items]
Asset redemption notice to general partner			3 days
Solasglas Investments, LP (SILP) \| GLRE Limited Partners
Schedule of Equity Method Investments [Line Items]
Equity method investments, fair value	$ 189,300		$ 189,300		$ 183,600
Equity method investment, ownership interest (as a percent)	76.00%		76.00%		78.20%